On the Phase Coupling of Two Components Mixing in Empirical Mode Decomposition
| Autor: | Dawid Laszuk, Jose O. Cadenas, Slawomir J. Nasuto |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Coupling
QA76.87 Kuramoto model 0211 other engineering and technologies Particle swarm optimization 020206 networking & telecommunications 02 engineering and technology Instantaneous phase Hilbert–Huang transform Control theory 0202 electrical engineering electronic engineering information engineering General Earth and Planetary Sciences Statistical physics QA377 Linear combination Harmonic oscillator Mixing (physics) 021101 geological & geomatics engineering General Environmental Science Mathematics |
| ISSN: | 2424-922X |
| Popis: | This paper investigates frequency mixing effect of empirical mode decomposition (EMD) and explores whether it can be explained by simple phase coupling between components of the input signal. The input is assumed to be a linear combination of harmonic oscillators. The hypothesis was tested assuming that phases of input signals’ components would couple according to Kuramoto’s model. Using a Kuramoto’s model with as many oscillators as the number of intrinsic mode functions (result of EMD), the model’s parameters were adjusted by a particle swarm optimization (PSO) method. The results show that our hypothesis is plausible, however, a different coupling mechanism than the simple sine-coupling Kuramoto’s model are likely to give better results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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